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  • Old Crow tephra: a new Late Pleistocene stratigraphic marker across north-central Alaska and western Yukon Territory
  • to the distant locations of potential Quaternary volcanic sources, demonstrate the widespread distribution of this tephra and underscore its importance as a regional stratigraphic marker.
  • Early and middle Wisconsinan environments of eastern Beringia : stratigraphic and paleo-ecological implications of the old crow tephra
  • to sheltered and moist sites. Camelops evidently was present in eastern Beringia during the middle Wisconsin interstadial interval but may have disappeared during the following glacial episode. The stratigraphic section at Canyon Creek appears to demonstrate
  • are therefore expected to be observed during several successive years. An experimental study using stratigraphic analyses and radioactive tracers (Lead 210 and fission products) has been performed in a large part of the Antarctic continent. The results show